Mocha stone, sardonyx and agate
Mocha stone and sardonyx cameos resting on artificially dyed slabs of agate. All these varieties of chalcedony derive from the cryptocrystalline quartz group.
Size: 1498px × 1909px
Photo credit: © Natural History Museum, London / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: agate, artefact, artifact, artificial, banded, cameo, chalcedony, cryptocrystalline, dioxide, gem, gemstone, jewellery, mineral, mocha, moss, object, onyx, quartz, sardonyx, shot, silicate, silicon, stone, studio, studioshot, tectosilicate
